7.4
CVSSv3

CVE-2023-51437

Published: 07/02/2024 Updated: 15/02/2024
CVSS v3 Base Score: 7.4 | Impact Score: 5.2 | Exploitability Score: 2.2
VMScore: 0

Vulnerability Summary

Observable timing discrepancy vulnerability in Apache Pulsar SASL Authentication Provider can allow an malicious user to forge a SASL Role Token that will pass signature verification. Users are recommended to upgrade to version 2.11.3, 3.0.2, or 3.1.1 which fixes the issue. Users should also consider updating the configured secret in the `saslJaasServerRoleTokenSignerSecretPath` file. Any component matching an above version running the SASL Authentication Provider is affected. That includes the Pulsar Broker, Proxy, Websocket Proxy, or Function Worker. 2.11 Pulsar users should upgrade to at least 2.11.3. 3.0 Pulsar users should upgrade to at least 3.0.2. 3.1 Pulsar users should upgrade to at least 3.1.1. Any users running Pulsar 2.8, 2.9, 2.10, and previous versions should upgrade to one of the above patched versions. For additional details on this attack vector, please refer to codahale.com/a-lesson-in-timing-attacks/ .

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apache pulsar

apache pulsar 3.1.0